@define-color window_bg_color #ffffff;
@define-color popover_bg_color #ffffff;
@define-color sidebar_bg_color #fafafa;
@define-color item_border_color @borders;
@define-color upcoming_bg_color #ededef;
@define-color upcoming_fg_color shade(#ededef, 0);
@define-color selected_color alpha(@shade_color, 0.65);